Has anyone experienced their rear windshields shattering while the car is parked (see details)?

2006 Honda Accord owned and driven by its original owner (in other words, it wasn't bought used.) Last driven on a Saturday evening. Parked in an extremely well-ventilated private basement garage.

By Tuesday morning, the rear windshield is totally shattered, still in place (it hasn't fallen into the car or to the pavement), with no visible signs of trauma caused by an external object, i.e. a pebble, or a baseball bat, etc.

Was there a large fast temperature change? A guy from
work once had a '73 Chrysler Newport. The car had been
parked in the sun on a warm day. When he squirted the
top with his garden hose to give it a wash the windshield
cracked right in half!! HTH. -Jim

No, Js08016, no large and fast temperature change.
Actually, the dealer's service rep did say that a temperature fluctuation could have caused pressure to build up in the car leading to pressure on the glass and the glass eventually cracking.
However, the car had been out of the sun for a couple of days and temps in the area had been mild and nice when the glass cracked. So it's quite hard to see how temperature had anything to do with it.

Recently, I walked out to my car to find that the parking lights were on and the engine was running. It was doing so without a key in it, and the parking light switch was not turned to on, either. T...